阅读说明：本技术 一种喷雾干燥装置 (Spray drying device ) 是由 郑晓广 陶圣明 李世强 靳鹏 王跃辉 张红卫 宋斯玉 何聪聪 段飞桐 贾炜 于 2021-09-15 设计创作，主要内容包括：本发明涉及一种喷雾干燥装置,包括气流喷雾头、动力室和上料室；气流喷雾头侧面均匀环形均匀分布有三个动力室,每个动力室上侧均对应设置有一个上料室,上料室内滑动套接有移动板,移动板圆心部位螺纹套接有螺纹杆,螺纹杆远离气流喷雾头的一端设置有通过棘轮机构与第一传动轮连接,上料室内设置有绞龙,绞龙的转轴远离气流喷雾头的一端与上料室转动套接,气流喷雾头内部转动套接有调控转筒；本发明在棘轮机构的配合作用下直接利用高压进气管内的气体压缩弹簧,利用弹簧的弹力驱动绞龙转动进行上料,简化了喷雾干燥的工艺,节省了成本。(The invention relates to a spray drying device, which comprises an airflow spray head, a power chamber and a feeding chamber, wherein the airflow spray head is connected with the power chamber; three power chambers are uniformly and annularly and uniformly distributed on the side face of the airflow spray head, a feeding chamber is correspondingly arranged on the upper side of each power chamber, a moving plate is sleeved in the feeding chamber in a sliding mode, a threaded rod is sleeved at the center of the moving plate in a threaded mode, one end, far away from the airflow spray head, of the threaded rod is connected with a first driving wheel through a ratchet mechanism, an auger is arranged in the feeding chamber, one end, far away from the airflow spray head, of a rotating shaft of the auger is rotatably sleeved with the feeding chamber, and a regulating and controlling rotary drum is rotatably sleeved in the airflow spray head; the invention directly utilizes the gas compression spring in the high-pressure gas inlet pipe under the matching action of the ratchet mechanism, and utilizes the elasticity of the spring to drive the auger to rotate for feeding, thereby simplifying the spray drying process and saving the cost.)

1. A spray drying device comprises an airflow spray head, a power chamber and a feeding chamber; the method is characterized in that: three power chambers are uniformly and annularly and uniformly distributed on the side surface of the airflow spray head, a feeding chamber is correspondingly arranged on the upper side of each power chamber, the power chambers and the feeding chambers are respectively communicated with the airflow spray head, a moving plate is sleeved in the feeding chamber in a sliding manner, a threaded rod is sleeved at the circle center of the moving plate in a threaded manner, one end of the threaded rod, far away from the airflow spray head, is connected with a first driving wheel through a ratchet mechanism, the ratchet mechanism comprises an inner ratchet wheel with ratchet teeth on the inner wall, a rotating disc concentric with the inner ratchet wheel and pawls uniformly distributed on the side edge of the rotating disc, wherein the inner ratchet wheel is fixed on the threaded rod, the pawls are hinged with the inner rotating wheel, the rotating disc is in driving connection with the first driving wheel, a feeding port is arranged on the upper side of the feeding chamber, an auger is arranged in the feeding chamber, one end, far away from the airflow spray head, of a rotating shaft of the auger is rotatably sleeved with the feeding chamber, and a second driving wheel is fixed on the rotating shaft of the auger, the first driving wheel is in transmission connection with the second driving wheel through a first driving belt.

2. The spray drying device according to claim 1, wherein the nozzle of the airflow spray head is vertically downward, the upper end of the airflow spray head is rotatably sleeved with a turntable, a fine adjustment motor is fixed on the feeding chamber, an output shaft of the fine adjustment motor is in transmission connection with the turntable through a second transmission belt, the airflow spray head is rotatably sleeved with a regulation and control rotary drum, the regulation and control rotary drum is fixedly connected with the turntable through a connecting rod, a high-pressure air inlet pipe is arranged in the airflow spray head and penetrates through the turntable, a main air outlet of the high-pressure air inlet pipe is communicated with the nozzle of the airflow spray head, the high-pressure air inlet pipe is provided with three side through pipes, and auxiliary air outlets of the three side through pipes are respectively communicated with corresponding power chambers.

3. A spray drying apparatus according to claim 1 wherein the connection between the power chamber and the airflow spray head is provided with through holes.

4. A spray drying device according to claim 1, wherein a return spring is provided at the hinge point of the pawl and the inner rotary wheel.

5. A spray drying apparatus according to claim 1, wherein heating panels are secured to the side walls of the loading chamber.

6. A spray drying device according to claim 1 wherein the conditioning rotor is provided with two vents at the side, the vents being at the same level as the power chambers, and there being one less vent than the power chambers, so that when a vent is connected to any two power chambers, one power chamber is separated from the airflow atomizing head.

Technical Field

The invention belongs to the technical field of spray drying, and particularly relates to a spray drying device.

Background

The molecular sieve is a material containing precise and single tiny holes, can be used for adsorbing gas or liquid, and needs to be subjected to processes such as reaction, filtration, ion exchange, drying and the like in a refining kettle in the production process, wherein the drying process adopts different drying modes according to different types of the molecular sieve, and the molecular sieve in fine powder form is subjected to spray drying.

The spray drying mainly comprises three modes of centrifugal spraying, pressure spraying and airflow spraying, wherein the current common mode is the pressure spraying, the molecular sieve material in the airflow spraying head is sprayed out by utilizing high-pressure airflow, and the high-pressure airflow can effectively prevent high-viscosity materials from being adhered in the spraying head.

However, when the high-pressure airflow enters the airflow atomizing head, the internal pressure of the airflow atomizing head is greater than the external atmospheric pressure, so that feeding is difficult, and the material can be fed into the airflow atomizing head only by providing the pressure greater than the high-pressure airflow from the outside, so that the drying process is complicated, a large amount of energy is consumed, the processing cost is increased, and further improvement is needed for overcoming the defects in the prior art.

Disclosure of Invention

In view of the above, the present invention provides a spray drying device to solve the above problems.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a spray drying device comprises an airflow spray head, a power chamber and a feeding chamber; three power chambers are uniformly and annularly and uniformly distributed on the side surface of the airflow spray head, a feeding chamber is correspondingly arranged on the upper side of each power chamber, the power chambers and the feeding chambers are respectively communicated with the airflow spray head, a moving plate is sleeved in the feeding chamber in a sliding manner, a threaded rod is sleeved at the circle center of the moving plate in a threaded manner, one end of the threaded rod, far away from the airflow spray head, is connected with a first driving wheel through a ratchet mechanism, the ratchet mechanism comprises an inner ratchet wheel with ratchet teeth on the inner wall, a rotating disc concentric with the inner ratchet wheel and pawls uniformly distributed on the side edge of the rotating disc, wherein the inner ratchet wheel is fixed on the threaded rod, the pawls are hinged with the inner rotating wheel, the rotating disc is in driving connection with the first driving wheel, a feeding port is arranged on the upper side of the feeding chamber, an auger is arranged in the feeding chamber, one end, far away from the airflow spray head, of a rotating shaft of the auger is rotatably sleeved with the feeding chamber, and a second driving wheel is fixed on the rotating shaft of the auger, the first driving wheel is in transmission connection with the second driving wheel through a first driving belt.

The spout of air current atomising head is vertical downwards, and the air current atomising head upper end rotates and has cup jointed the carousel, be fixed with the fine setting motor on the material loading room, the output shaft and the carousel of fine setting motor pass through second drive belt transmission and be connected, the inside rotation of air current atomising head has cup jointed the regulation and control rotary drum, and through connecting rod fixed connection between regulation and control rotary drum and the carousel, be provided with high-pressure intake pipe in the air current atomising head, high pressure adds the intake pipe and passes the carousel, the main gas vent of high-pressure intake pipe accesss to the spout position of air current atomising head, and high-pressure intake pipe is provided with three side siphunculus, the vice gas vent of three side siphunculus accesss to corresponding power room respectively.

Preferably: and a through hole convenient for exhausting is arranged at the connecting part of the power chamber and the airflow spray head.

Preferably: and a return spring is arranged at the hinged part of the pawl and the inner rotating wheel.

Preferably: and a heating panel is fixed on the side wall of the feeding chamber.

Preferably, the side surface of the regulating and controlling rotary drum is provided with two air vents, the air vents and the power chambers are positioned at the same height, and the number of the air vents is one less than that of the power chambers, so that when the air vents are communicated with any two power chambers, one power chamber is separated from the airflow spray head.

The invention has the beneficial effects that: according to the invention, a molecular sieve material is heated by a heating panel, then the material is fed into an airflow spray head under the drive of a packing auger, and air discharged from a main exhaust port by a high-pressure air inlet pipe carries the material to be sprayed out from a nozzle of the airflow spray head, so that spray drying is completed; and air exhausted from the high-pressure air inlet pipe is blown to the movable plate to push the movable plate to move towards the direction far away from the airflow spray head, the threaded rod is driven to rotate clockwise, the spring is compressed, at the same time, the threaded rod drives the inner ratchet wheel to rotate clockwise, the pawl slides on the back of the ratchet wheel tooth, at the same time, the first driving wheel does not rotate, along with the rotation of the regulation and control rotary drum, when the regulation and control rotary drum blocks the power chamber 2, the gas in the power chamber is exhausted from a through hole at the connecting part of the power chamber and the airflow spray head, and the spring recovers the original state, the movable plate is pushed to approach the airflow spray head to drive the threaded rod to rotate anticlockwise, at the same time, the threaded rod drives the inner ratchet wheel to rotate anticlockwise, the pawl is inserted into the ratchet wheel tooth, under the action of the pawl, the inner ratchet wheel drives the rotary table to rotate, the first driving wheel to rotate, the auger is driven to rotate by the elasticity of the spring to carry out feeding, the spray drying process is simplified, and the cost is saved.